Side by side

Oak & Oscar The Humboldt ExP-02vsBoldr Odyssey Freediver

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

The Humboldt ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400
Odyssey Freediver
BoldrOdyssey Freediver
MSRP $649

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Odyssey Freediver40mm
Power Reserve
The Humboldt ExP-0256h
Odyssey Freediver40h
Water Resistance
The Humboldt ExP-02200m
Odyssey Freediver300m
MSRP
The Humboldt ExP-02$2,400
Odyssey Freediver$649

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
39.5mm
40mm
Thickness
12.4mm
14.2mm
Lug-to-Lug
46.8mm
48mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
300m
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Inner
Yes
Dial Color
Grey
202
Lume
Super-LumiNova BGW9
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW300
Cal
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$649

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Oak & Oscar The Humboldt ExP-02

Oak & Oscar The Humboldt ExP-02 is a 39.5mm stainless steel tool watch featuring a unique, layered aluminum "ghost dial" for legibility and 200m water resistance, powered by a Sellita SW300 movement. Its appeal is limited by a US$2,550 price and an extremely limited production of 20 pieces, with its experimental dial construction done in Chicago. Overall, reviewers highlight the endearing dial and in-house bezel production as key features of the Oak & Oscar Humboldt ExP-02.

Boldr Odyssey Freediver

The Boldr Odyssey Freediver is praised for its bead-blasted steel case with polished bevels and a custom steel bracelet designed for wrist curvature. Reviewers note its strong legibility, applied details, and vintage-inspired date window on fresh dial colors. The 44mm case is surgical-grade steel with a brushed finish and angular lugs, water-resistant to 300 meters. It houses a Miyota 9075 movement with a jumping local hour function. On balance, reviewers highlight the Boldr Odyssey Freediver's thoughtful case finishing and functional movement with a local hour complication.

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